Bukkit

What steps will reproduce the problem?
1.[17:46:01] [Server thread/INFO]: [NoLagg] Enabling NoLagg v1.90.6-SNAPSHOT
[17:46:03] [Server thread/ERROR]: [NoLagg Chunks] Failed to enable NoLagg component 'Chunks':
[17:46:03] [Server thread/ERROR]: [NoLagg] This version of the plugin is incompatible with this Minecraft version:
[17:46:03] [Server thread/ERROR]: [NoLagg] Please, check for an updated version of NoLagg before reporting this bug!
[17:46:03] [Server thread/ERROR]: java.lang.NoSuchMethodError: net.minecraft.server.v1_7_R4.PlayerChunkMap.<init>(Lnet/minecraft/server/v1_7_R4/WorldServer;I)V
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.common.bases.PlayerChunkMapBase.<init>(PlayerChunkMapBase.java:24)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.nolagg.chunks.antiloader.DummyPlayerManager.<init>(DummyPlayerManager.java:57)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.nolagg.chunks.antiloader.DummyPlayerManager.<init>(DummyPlayerManager.java:53)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.nolagg.chunks.antiloader.DummyPlayerManager.convert(DummyPlayerManager.java:34)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.nolagg.chunks.antiloader.DummyPlayerManager.convertAll(DummyPlayerManager.java:29)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.nolagg.chunks.DynamicViewDistance.init(DynamicViewDistance.java:93)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.nolagg.chunks.NoLaggChunks.onReload(NoLaggChunks.java:115)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.nolagg.chunks.NoLaggChunks.onEnable(NoLaggChunks.java:121)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.nolagg.NoLaggComponent.enable(NoLaggComponent.java:59)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.nolagg.NoLagg.enable(NoLagg.java:58)
[17:46:03] [Server thread/ERROR]: at com.bergerkiller.bukkit.common.PluginBase.onEnable(PluginBase.java:753)
[17:46:03] [Server thread/ERROR]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316)
[17:46:03] [Server thread/ERROR]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:324)
[17:46:03] [Server thread/ERROR]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404)
[17:46:03] [Server thread/ERROR]: at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.java:455)
[17:46:03] [Server thread/ERROR]: at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.java:389)
[17:46:03] [Server thread/ERROR]: at net.minecraft.server.v1_7_R4.MinecraftServer.n(MinecraftServer.java:352)
[17:46:03] [Server thread/ERROR]: at net.minecraft.server.v1_7_R4.MinecraftServer.g(MinecraftServer.java:326)
[17:46:03] [Server thread/ERROR]: at net.minecraft.server.v1_7_R4.MinecraftServer.a(MinecraftServer.java:282)
[17:46:03] [Server thread/ERROR]: at net.minecraft.server.v1_7_R4.DedicatedServer.init(DedicatedServer.java:189)
[17:46:03] [Server thread/ERROR]: at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:436)
[17:46:03] [Server thread/ERROR]: at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)
[17:46:03] [Server thread/INFO]: [NoLagg Saving] will write world data to all region files every 12000 ticks (10.0 minutes)
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What is the expected output? What do you see instead?

What version of the product are you using?

NoLagg v1.90.6-SNAPSHOT
Do you have an error log of what happened?

Please provide any additional information below.

i finally make it work, but the chunks dont load :C